Update to 7-Zip Version 21.02

CPP/7zip/Archive/Zip/ZipHeader.h

@@ -49,24 +49,25 @@ namespace NFileHeader
       kDeflate = 8,
       kDeflate64 = 9,
       kPKImploding = 10,
-      
-      kBZip2 = 12,
-      
-      kLZMA = 14,
-      
-      kTerse = 18,
-      kLz77 = 19,
-      
-      kZstd = 93,
-      kXz = 95,
-      kJpeg = 96,
-      kWavPack = 97,
-      kPPMd = 98,
-      kWzAES = 99
+
+      kBZip2 = 12,   // File is compressed using BZIP2 algorithm
+
+      kLZMA = 14,    // LZMA
+
+      kTerse = 18,   // File is compressed using IBM TERSE (new)
+      kLz77 = 19,    // IBM LZ77 z Architecture
+      kZstdPk = 20,  // deprecated (use method 93 for zstd)
+
+      kZstd = 93,    // Zstandard (zstd) Compression
+      kMP3 = 94,     // MP3 Compression
+      kXz = 95,      // XZ Compression
+      kJpeg = 96,    // JPEG variant
+      kWavPack = 97, // WavPack compressed data
+      kPPMd = 98,    // PPMd version I, Rev 1
+      kWzAES = 99    // AE-x encryption marker (see APPENDIX E)
     };
 
     const Byte kMadeByProgramVersion = 63;
-    
     const Byte kExtractVersion_Default = 10;
     const Byte kExtractVersion_Dir = 20;
     const Byte kExtractVersion_ZipCrypto = 20;
@@ -77,7 +78,7 @@ namespace NFileHeader
     const Byte kExtractVersion_Aes = 51;
     const Byte kExtractVersion_LZMA = 63;
     const Byte kExtractVersion_PPMd = 63;
-    const Byte kExtractVersion_Xz = 20; // test it
+    const Byte kExtractVersion_Xz = 20;   // test it
     const Byte kExtractVersion_Zstd = 20; // WinZip mark it
   }
 
@@ -92,7 +93,10 @@ namespace NFileHeader
       kUnixExtra = 0x5855,
       kIzUnicodeComment = 0x6375,
       kIzUnicodeName = 0x7075,
-      kWzAES = 0x9901
+      kUnix2Extra = 0x7855,
+      kUnix3Extra = 0x7875,
+      kWzAES = 0x9901,
+      kApkAlign = 0xD935
     };
   }